(music) a major key with the notes C♭, D♭, E♭, F♭, G♭, A♭, B♭

(music) a major key with the notes G♭, A♭, B♭, C♭, D♭, E♭, and F

(music) a minor key with the notes E♭, F, G♭, A♭, B♭, C♭, D♭

(music) a minor key with the notes B♭, C, D♭, E♭, F, G♭, A♭ / (music) a minor chord with a root of B♭.

(music) describing a piece, song, or scale that has a D-flat major key

(idiomatic) To knock someone down; to hit someone so they fall to the floor.

Used other than figuratively or idiomatically: see flat, on, back. / (idiomatic) without recourse; helpless

(gambling) A loaded die fashioned so that the numbers 1 and 6 come up more frequently than others.

plural of six-ace flat

(US) An airline's policy of putting a passenger on the next available flight without a penalty if they arrive too late for the scheduled flight.